Bank routing number ยท Boulder, Colorado
Flatirons Bank Routing Number (ABA): 107006839
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The Flatirons Bank routing number is 107006839. It is the primary ABA routing transit number on the bank's FFIEC National Information Center record, refreshed here on October 25, 2026.
Flatirons Bank at a glance
Its CET1 capital ratio was 12.87% at Q2 2026, above regulatory requirements.
- Total assets, Q2 2026
- $370.3M
- CET1 ratio, Q2 2026
- 12.87%
- Deposit insurance
- FDIC
- Regulator
- Federal Reserve
- Domestic offices
- 3 FDIC institution directory, current count
- Established
- 2001
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Flatirons Bank routing numbers on file
| Routing number | Type | Status | Source |
|---|---|---|---|
| 107006839 | Primary ABA | Active | FFIEC NIC |
Record refreshed here on October 25, 2026. NIC holds one primary number per bank; Flatirons Bank publishes any other numbers it uses itself.
What the digits mean
The first two digits, 10, place this number in the Federal Reserve Bank of Kansas City's district (District 10). Digits five through eight, 0683, identify the institution within that district. The last digit, 9, is a check digit, and the number passes the standard check: weight the nine digits 3, 7, 1, 3, 7, 1, 3, 7, 1 and the sum is a multiple of 10.
Before you send money to Flatirons Bank
A routing number tells the payment network which financial institution holds an account. You give it with an account number for ACH transfers through the automated clearing house, such as direct deposit, bill pay and transfers from a checking account, which usually settle in one to two business days. An international wire to a US account normally needs the bank's SWIFT code as well.
Match this number against the one on your Flatirons Bank checks or in its online banking. Ask the bank for wire instructions (www.flatirons.bank). Our record does not show whether this number receives wires. The Federal Reserve's E-Payments Routing Directory shows it: its Fedwire participant search lists the numbers that can receive Fedwire transfers, and its FedACH search lists those that receive ACH payments. How to confirm any routing number.
About Flatirons Bank
Flatirons Bank is headquartered in Boulder, Colorado and was established in 2001. It is in the BOULDER, CO metro area. It reported $370.3M in total assets and $336.1M in deposits for Q2 2026, the 29th largest of the 63 banks headquartered in Colorado. It reports 3 domestic offices. Its deposits have been FDIC insured since 2001. Its primary federal regulator is the Federal Reserve. 3 other banks and credit unions headquartered in Boulder have a routing number listed here.
What the digits in 107006839 mean
The first four digits, 1070, are the Federal Reserve routing symbol. The prefix 10 places the number in the 10th Federal Reserve District (Kansas City). That is also the district where the bank is headquartered. Digits five through eight, 0683, identify the institution within its Federal Reserve district. The last digit, 9, is a check digit. Weighting the digits 3, 7 and 1 in turn gives 3 x 9 + 7 x 3 + 22 = 70, a multiple of 10, so 107006839 is a well-formed routing number. A mistyped digit almost always breaks that sum.
What is the Flatirons Bank routing number?
The Flatirons Bank routing number is 107006839. It is the primary ABA routing transit number registered to Flatirons Bank, headquartered in Boulder, CO. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 25, 2026.
What is the Flatirons Bank wire routing number?
This page lists the primary routing number registered to Flatirons Bank. The record does not say whether the bank uses the same number for wire transfers. Confirm the wire routing number with Flatirons Bank before sending a wire.
Is ABA number 107006839 the routing number for Flatirons Bank?
Yes. It is the primary routing number registered to Flatirons Bank.
Which bank uses routing number 107006839?
It belongs to Flatirons Bank, headquartered in Boulder, CO. It is the bank's primary ABA routing number (FDIC certificate 57280).
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Regulator records: FDIC BankFind (cert 57280) · FFIEC NIC profile (RSSD 3022610)